Printing telegraph apparatus



June 20, 1944. A. H. REIBER 2,351,636

PRINTING TELEGRAPH APPARATUS Original Filed May 4, 1936 "Q- 2 '3 9 s I INVENTOR ALBERT H. REIBER .ATTORNE Patented June 20, 1944 PRINTING TELEGRAPH APPARATUS Albert II. Reiber, Evanston, Ili., assignor to Teletype Corporation, Chicago, 11]., a corporation of Delaware Original application May 4,1936, Serial No. 77,796. Divided and this application November 1, 1941,

Serial No. 417,529

1 Claim.

. The present invention pertains to printing apparatus and more particularly to paper controlling instrumentalities therefor.

This application is a division of application Serial No. 77,796 filed May 4, 1936, which matured as Patent No. 2,296,874, September 29, 1942. The principal object of the present invention is to provide in a typewriting machine, features which are conducive to reliable and efiicient operaition.

The present invention features novel paper controlling devices which facilitate the handling and disposal of record material for printing machines. Briefly, the printer to which the device according to the present invention is applicable 'is adapted to print upon page width paper, and

the paper may be in the form of single sheets or a continuous web. The arrangement disclosed for supporting a roll of paper comprises a bar having at the ends thereof rearwardly extending concave roll supporting arms, and intermediate the arms there is provided a rearwardly extendlng oppositely curved roll retaining arm. The paper supply roll holder is adapted to readil receive and retain a roll of paper, and is readily detachable and replaceable on the platen carriage structure. When it is desired to supply paper in the form of a web which is not supported on the platen carriage, but which is stationarily mounted upon any suitable support behind the carriage, the present invention provides a detachable paper chute or guide capable of being supported in a plurality of different positions.

The foregoing objects and features of the invention will appear from the following detailed description taken in conjunction with the accompanying drawing, in which F18. 1 is a perspective view of the platen carriage showing particularly the paper holding and guiding means;

Fig. 2 is a perspective view of the removable paper roll holder shown in broken lines in Fig. 1;

FIB. 3 is a perspective view of a paper guiding plate;

Fig. 4 is a vertical sectional view through the platen carriage showing the manner of mounting the platen shown in Fig. 3 upon the carriage; and

Fig. 5 is a vertical cross sectional view showing the line feeding mechanism.

Having reference to the drawing in which like reference characters indicate similar parts throughout the several views, the platen carriage mechanism to which the paper controlling instrumentalities of the present invention are approvided With a feed ra'tchet n (Fig. 5) with which there cooperates a feed pawl l8.

The platen feeding pawl is articulated to a lever l9 that is fixed to a rock shaft 2|. The rock shaft 2| is rotatably journalled in the carriage II and has fixed thereto at a poinlt substantially midway between the ends of the car-,

riage ll an operating lever 22. The lever 19, rock shaft 2|, and operating lever 22 are biased counterclockwise by a spring 23. Feeding of the ratchet il in the direction indicated by the arrow is effected by clockwise rotation of operating lever 22, by a power actuated bail 24 (in the manner described in the afore-mentioned parent application Serial No. 77,796), against the tension of spring 23, which subsequently acts to reciprocate the pawl It to pick up the next tooth or teeth for the next line feeding operation. A lever 25, pivoted on the carriage end plate 13, provides two abutments for deflecting the pawl at different points in its travel to idle or unoperated position to establish single or double line spacing. When the lever is in the position shown in full line, it permits the pawl toitravel sufllciently far, in engagement with the ratchet ll to pick up two teeth, whereas if the lever is in the dotted line position the pawl is deflected from the ratchet and is permitted, when it operates, to pick up only one tooth. An adjustable eccentric 26 (Fig. 5) is mounted on the carriage end plate I3 and is disposed in the path of a camming lug 21 on the pawl I8 for wedging the pawl against the ratchet to prevent over-travel of the ratchet and platen. A spring biased jockey roll 28 bears against the ratchet ll and controls [the positioning of the platen l2.

The carriage II is moved to its right-hand position by a belt (not shown), which has one end connected to a carriage return drum which contains a spiral spring, and which has its other end connected to a pin carried by the carriage H. The carriage II is moved leftwardly by spacing mechanism (described in the parent application) against the action of the spiral spring. The return of the carriage to its extreme right-hand position, in response to the carriage return function, is cushioned by a dash pot (in well-mown manner).

The line feed function, as is known. is a function accomplished by rotatins the printing platen it to advance a sheet orweb of paper upon which printing is to be effected through a distance sub flcient to present a line of blank paper to the printing position. The ball 24 is pivctally mounted in suitable brackets on the frame I! and extends slightly above the lower end of the previously described line feeding lever 22. The lever 22 travels with the carriage ii and the extent of the bail 2d transversely of the machine is slightly greater than the travel of the lever 22, so that the lever may be engaged by the ball at any position in the travel oi the carriage. The line feed lever 22 is provided with an anti-friction roll 28 which constitutes means for engagement of the ball 26 withthe lever 28.

As has been previously stated, the printing platen i2 is rotatably supported in the end plates it of a movablecarriage ii (Fig. 8). Carriage ii supports an arcuate paper guiding plate M which extends around the lower portion of the platen and is conformed to the contour thereof. The arcuate plate 30 is provided with bearing members 32 in which are supported shafts 88 (Fig. 1). The shafts 38 have mounted thereon pressure rolls M and the plate 3! is provided with apertures in registry with the pressure rolls 33d to permit the rolls to frictionally engage the platen when no paper is inserted in the carriage and to irictionally engage paper upon which characters are to be printed.

The end plates It are provided with inwardly turned cars 36 which support in abutment with the forward faces thereof a paper tear-ofl blade 3% and which support in abutment with the rearward faces thereof a paper guiding plate 9'5. Mounting screws 39 secure the blade 3t! and guide plate 3? to the cars 35 and the blade at and plate 31 are spaced apart a distance equal to the thickness of the ear 85, whereby there is provided a space through which may be guided paper passing upwardly from the platen after having been fed between the platen i2 and ar cuate guide plate 8 l'. The lower edge of the guide plate 3'! is disposed in close proximity to the platen l2 and the plate functions after the manner of a stripper to guide the paper away from the platen. Guide fingers 3B are adiustably mounted by screws dl upon the tear-off blade 36 and the fingers extend downwardly and overlap the arcuate plate 3| so that paper emerging from between the platen i2 and arcuate'plate Si is guided to the passage space between the $681! off blade 36 and the guide plate 31.

The printer herein described is adapted to print upon page width paper and the paper may be in the form of single sheets or a continuous web. Anarrangement for supporting a roll of paper is shown in Figs. 1 nd 2 and co pr s a bar 42 having at the ends thereof rearwardly extending concave roll supporting arms 43 and intermediate the arms 43 a rearwardly extending oppositely curved roll retaining arm 44. The roll supporting arms 63 are provided with upwardly turned ears 45 which prevent axial displacement of a supply of paper in the form of a roll. The roll supporting member just described is removably supported on the carriage H by I means of downwardly extending proiections 46 carried by the bar 42 to be received in retainin means now to be described.

the guide plate 91 is provided at the top thereof with a horizontal flange 41 in which are formed slots 58 spaced apart a distance equal to the spacing of the projections 68 of the roll supporting bar 42. At the lower edge of the guide plate ill and below each-slot 68, two slits or cuts are made whereby tongues 49 are formed and these tongues are bent backwardly and upwardly to form pockets to receive and retain projections dd on the bar 62. The paper roll holder may be easily removed from the carriage by lifting it vertically to withdraw the projections $8 from the pockets formed by the tongues 59 and from the slots dd.

Under some circumstances it may be desired to supply paper in the form of a web which is not supported on the carriage but which is stationarily mounted upon any suitable support behind the carriage. There is shown in Figs. 3 and s a guide member supportable in either of two positions and means on the carriage for supporting the guide member. As shown in Fig. 4, the carrlage H has secured thereto and extending across the rear thereof a. convexly formed plate iii in which are formed spaced slots near the forward edge thereof and other similar slots near the rearmost edge thereof. A guide plate 52 which is adapted to be received by the convex plate 5! (Figs. 3 and 4) is provided at its opposite ends with flanges be between which there extends a paper retaining rod 56 in spaced relation to the plate 52. The plate 52 is provided at the foremost edge thereof with tongues 56 spaced apart a distance equal to the spacing of the slots in the convex plate 58, each tongue 55 having an ofiset 5d. The plate 52 may be supported in an upwardly inclined position on the convex plate Bl by inserting the tongues 68 in the forward set of slots so that the foremost portions of the tongues abut the inner surface of the plate 5! with the ofisets 56 disposed within the slots. This manner of mounting the guide plate 62 is disclosed in broken lines in the upper portion of Fig. 4. The plate 52 may also be supported in a downwardly inclined position by similarly inserting the tongues 55 in the rearmost slots in the convex plate bl. This mounting is shown in broken lines in the lower part of Fig. 4.

Although a particular embodiment of the invention has been described herein, it will be understood that the apparatus is capable of many modifications and substitutions in the various elements and combinations thereof within the scope of the appended claim.

What is claimed is: I

In a recorder having a demountable paper supply roll holder, a stationary frame, a platen carriage movably supported by said frame, a cylindrical platen rotatably supported by said carriage, said carriage having end plates for journalling said platen therein, an angle bar cornprising a depending flange and a rearwardly directed flange extending between said end plates and secured thereto having its depending flange positioned immediately above said platen and disposed parallel thereto to form a stripper for positively deflecting the record material from the periphery of said platen, and integral supporting means comprising tongues struck from said depending flange and conformed into U-shaped receptacles disposed below and cooperatively related to apertures in the rearwardly directed flange of said angle bar to facilitate the demountability of said roll holder on said carriage.

It will be observed by reference to Fig. 1- that ALBERT H. REIBER. 

